From 1a935b2f9b2de1d4e49379ea3084e86a47fc409f Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Thu, 7 Oct 2010 06:07:03 +0200
Subject: Added support for dependencies between beam files (for behaviours)

---
 ErlangTarget.cmake | 72 ++++++++++++++++++++++++++++++------------------------
 1 file changed, 40 insertions(+), 32 deletions(-)

diff --git a/ErlangTarget.cmake b/ErlangTarget.cmake
index de5fd92..5562d86 100644
--- a/ErlangTarget.cmake
+++ b/ErlangTarget.cmake
@@ -1,37 +1,45 @@
 find_package(Erlang REQUIRED)
 
 macro(erl_target name)
-    parse_arguments(ARGS "HEADERS;OPTIONS" "" ${ARGN})
-
-    set(headers "")
-    set(out_files "")
-    
-    foreach(header ${ARGS_HEADERS})
-        list(APPEND headers "${CMAKE_CURRENT_SOURCE_DIR}/${header}")
-    endforeach(header ${ARGS_HEADERS})
-    
-    foreach(src ${ARGS_DEFAULT_ARGS})
-        set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
-        string(REPLACE ".erl" ".beam" src ${src})
-        set(out_file "${CMAKE_CURRENT_BINARY_DIR}/${src}")
-        	
-	add_custom_command(
+  parse_arguments(ARGS "HEADERS;OPTIONS" "" ${ARGN})
+
+  set(headers "")
+  set(out_files "")
+
+  foreach(header ${ARGS_HEADERS})
+    list(APPEND headers "${CMAKE_CURRENT_SOURCE_DIR}/${header}")
+  endforeach(header ${ARGS_HEADERS})
+
+  set(before "")
+
+  foreach(src ${ARGS_DEFAULT_ARGS})
+    if(src STREQUAL "BEFORE")
+      set(before ${out_files})
+    else(src STREQUAL "BEFORE")
+      set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+      string(REPLACE ".erl" ".beam" src ${src})
+      set(out_file "${CMAKE_CURRENT_BINARY_DIR}/${src}")
+
+      add_custom_command(
 	OUTPUT
-            ${out_file} 
-        COMMAND 
-            ${ERLC_EXECUTABLE} 
-            "-o" ${CMAKE_CURRENT_BINARY_DIR}
-            ${ARGS_OPTIONS} 
-            ${in_file} 
-        DEPENDS 
-            ${in_file} 
-            ${headers} 
-    	)
-	
-        list(APPEND out_files "${CMAKE_CURRENT_BINARY_DIR}/${src}")
-    endforeach(src ${ARGS_DEFAULT_ARGS})
-    
-    add_custom_target(
-        ${name} ALL DEPENDS ${out_files}
-    )
+          ${out_file}
+	COMMAND
+          ${ERLC_EXECUTABLE}
+          "-o" ${CMAKE_CURRENT_BINARY_DIR}
+	  "-pz" ${CMAKE_CURRENT_BINARY_DIR}
+          ${ARGS_OPTIONS}
+          ${in_file}
+	DEPENDS
+          ${in_file}
+          ${headers}
+	  ${before}
+	)
+
+      list(APPEND out_files "${CMAKE_CURRENT_BINARY_DIR}/${src}")
+    endif(src STREQUAL "BEFORE")
+  endforeach(src ${ARGS_DEFAULT_ARGS})
+
+  add_custom_target(
+    ${name} ALL DEPENDS ${out_files}
+  )
 endmacro(erl_target)
-- 
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